Toxicology Glossary - W
waste: Anything that is discarded deliberately or otherwise disposed of on the assumption that it is of no further use to the primary user.wasting syndrome: Disease marked by weight loss and atrophy of muscular and other connective tissues that is not directly related to a decrease in food and water consumption.
Weibull model: Dose-response model of the form:
P(d) = 1 - exp(-bdm)
Where P(d) is the probability of cancer death due to a continuous dose rate, d, b and m are constants.
IRIS, 1986
weight-of-evidence for toxicity: Extent to which the available biomedical data support the hypothesis that a substance causes a defined toxic effect such as cancer in humans.
IRIS, 1986
withdrawal effect: Adverse event following withdrawal from a person or animal of a drug to which they have been chronically exposed or on which they have become dependent.
working zone: Space measuring up to 2 m over the level of the floor or platform that contains a worker's permanent or temporary station.
IRPTC, 1982